Demountable-rim-securing means



March 30 1926. v

. W. N., BOOTH DEMOUNTABLE RIM SEGURING MEANS Original Filed Nov. 24I 1919 ,meneame To' allawlwmvitmayfeomem: l

i 1f:*nEnoUN'rABLE:muesncrmma: MEANS.

\ drawings.

- :Theiin-ventonz relatesstoid'emountable r-ims.

f f for vehicle =Wheels'` of; that; type in :which'tthe rim engages taperingfaseats,v .upon the lfixed' k,riin'- and issecuredxthereto' by lateral prese' ksure ofaaclamp-ing;lug"i Itgisvtheobject of@ l'the invention ytolpnov-ide means; for more ac` sidingat :Detltoitv inf-the-;.county off'cWayne 'z and :State of fMicliiganf- `have:inventedi cerel tain- 1ie-.\vandl-.zusulg :lmprovements iin; Dc-z, mountable-RiinSecuring? j .thefollovw-ing is a 4specification,;reference being-l liadinthereirr toiJ thewaccompa-nyingn Y ,saine-fandethe lange C. Thus, asfshown in 2 ,Figure 1,1 the face; Dzfof the/rib 'D' is slightly undercut oruob-liquelyv inclined and vthe enl y ffcurx-vtely: *securingfthe rim; :and 1 for y avoiding A 'defectsv whichi have yexistedvi'n. constructions n -heretoforeused.4 A i v kr moui'itablecrim land `the, fixed rim, showingI l :i the clanipin-gfmeans, i-n', sectlonalv elevation i l D.-for'respectielygengaging thel seats C and .C:, these bearingsbeingfpreferably E'formed l fi-nglflugs FJ-:Jllie latter-'are preferablyproslicmuginF); a: modified? construction.

QFigure 2, 1s` ja.cross-section through. the vblank-z'fromwhiehftheuriin.isyformedg show-'- completelyA -formed.\ ,Thus as shown in fing lthermanner ot z constructing the same 1 LF-Ignite 3' 1s ar sectiona'lffperspective 4View suitable:construction;but which iszshown as f :sides of; theXed yrim and,` form-ing the tapering seats for tliefdenionntable rinn v The rim A is; providediwitlrbearng portionsD and on `ribs: orfbeadson :thel `inner side of the rim.

For:y cla-mpingthe Eri-ni upon its seats there are provided:'boltsl E.` passing-l transversely through thzet .i'xed ril-n .and engaginfr clampi' .vid-ed;with` heel' portions= G,gwhich engage rshol-llders H on the inner :portion of the fixed rinifandfiwitli bearing. portions I for engagingvtherib Di LThexl-ugs FA are actuated byznuts Lyp'referably secured thereto by a l swivel'engagement.r

. .'Witlifthefconstru tion: asV thus far describeddiculty -hasssolnetimes been expe- 2 rienced properly- Afsecllring the. demountn fablevrinigifdue to: the `.fact :that-.commercial y ri'msfseldoimexactly fit the :seats-upon the will -soin'etilnesy force itselfY between the bearing" Dy and `the/flange C@ 'both distorting the run and? failing to pro erly secure -they same.

instead of'y sliding` offl the krim between kthe gag-ingfacel of the; lug iscorrespondingly 'mc-lined., -'Il1erefore, when clamping'pressure is exertedy upon the l ug,`1nsteady of jsliding olfethe` demou-ntable rim and between the same and the? adjacent fixed- 'rimflange,

vit will bedrawny into fuller "engagement with .,ft'hefdemountablee'rimf and at the Sametime -Awill' exertQa'.lateralpressure, forcing the dey' mountableyrim up*` theinolines and into firm eng-agement'with the wheel.

"The undercut bearing" D? may be formed on- -thefri-b Dv either during the rolling of theisanie5 or-fsubsequently lafter the rim is Figure 2*,ythepzri1n blank K' during its initial rolling is,-sligl1tly.reversely bent,` as indi- `cated at L, thereby giving draft forV the face D2 inthe rolls.- Subsequently when the blank 1s bentinto itsacompleted form', shown in v Figure l-,-'the' face D2 willfassume its undercut relation.

Asshown in the modified construction ofv Figure, the rib or bead lD is originally reversely taperedwand is subsequently 're- `fashioned in dies at points-opposite the lugs to belgiven the undercut orm, as indicated atM.

That I claim as' my-invention: is: l. The combination" with a demountable rim/',ofv a fixed rifin having atap'ered seat for said demountable rim, alf circumferentially etend-ing bead on said: demountable rim, r means for securlng-v said demountable rim` upon said: 'xedrim including clamping lugs each having a face engaging said bead to force,said'deinountable rim to its seat,y and circumferentially extendin bearings onl said beadv for engagelnent'wii said clamping lugs,said bearings lbeing inclined to draw the faces of'isaid clamping lugs into fuller engagement therewith.

2;,1Theco1nbination with avchannel shaped fixedpzrim; havin -ilanges o n-r opposite sides thereof .provided` with tapering` seats, the

roo

ing on said delnountable rim for engaging'y said ce, 'Saud bearing being lnchned to( draw said face into fuller engagement therewith.

3. The combinatlon with a demountable rim, of a channel-shaped fixed rim having.

flanges on opposite sides thereof provided with 4tapering` seats for said delnountable rim', :l circumferential bead extending inwardly from Suid deniountabie rim for engaging one of said tapering seats, means for securing said demountabe rim upon said fixed rim including a clamping lug having :l face engaging Said denlountzxble rim to force the same to its seat, und a circumfer-v entinlly'extending beau-ing on said bead for engaging said face, said bearing being inclined to draw Said face into fuller engagement therewith.

In testimony whereof I affix 1n signature.

' WILLIAM N. OOTH.

am su. 

